Passing session variables between pages:

I have set up a series of registration pages that accept user input, 
confirm the input and then load the information onto our database.  
Everything works great.
I am now trying to get another form (POST) to pass from page to page.  
The session_id is passing properly.
Once I get to ...CLASSIFIEDS/CONFIRMADS/confirmjob.php the $_POST 
variables work fine.  Can also print the $_SESSION versions of those 
variables fine.
Then go to ...CLASSIFIEDS/LOADAD/loadjobs.php - the loginusername and 
the username variables do load properly - They come from the LOGIN 
portion of the path, the rest of the LOADAD doesn't carry the variables.
Finally the ...PAYMENT/payclassjobs.php also doesn't carry the variable 
values forward.

The only difference between the registration pages and the job ad pages 
is that there is an array for both the jobtype variable and the jobind 
variable.